Fabrication of Regenerated Cellulose Fibers with Good Strength and Biocompatibility from Green Spinning Process of Ionic Liquid

2021 ◽  
pp. 2000741
Author(s):  
Le Zhou ◽  
Zhaoqing Kang ◽  
Yi Nie ◽  
Liying Li
Keyword(s):  
Ionic Liquid ◽  
Cellulose Fibers ◽  
Regenerated Cellulose ◽  
Good Strength ◽  
Spinning Process

scholarly journals Correction to “Recycling of Superbase-Based Ionic Liquid Solvents for the Production of Textile-Grade Regenerated Cellulose Fibers in the Lyocell Process”

2020 ◽  
Vol 8 (49) ◽  
pp. 18345-18345
Author(s):  
Sherif Elsayed ◽  
Jussi Helminen ◽  
Sanna Hellsten ◽  
Chamseddine Guizani ◽  
Joanna Witos ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Cellulose Fibers ◽  
Regenerated Cellulose

scholarly journals Recycling of Superbase-Based Ionic Liquid Solvents for the Production of Textile-Grade Regenerated Cellulose Fibers in the Lyocell Process

2020 ◽  
Vol 8 (37) ◽  
pp. 14217-14227 ◽  
Author(s):  
Sherif Elsayed ◽  
Sanna Hellsten ◽  
Chamseddine Guizani ◽  
Joanna Witos ◽  
Marja Rissanen ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Cellulose Fibers ◽  
Regenerated Cellulose

Structure and Mechanical Properties of Regenerated Cellulose Fibers Wet-Spun from Ionic Liquid/Cosolvent Systems

2019 ◽  
Vol 20 (3) ◽  
pp. 501-511
Author(s):  
Young Jae Lee ◽  
Sung Jun Lee ◽  
Sang Won Jeong ◽  
Hyun-chul Kim ◽  
Tae Hwan Oh ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ionic Liquid ◽  
Cellulose Fibers ◽  
Regenerated Cellulose

Regenerated cellulose fibers from waste bagasse using ionic liquid

2011 ◽  
Vol 81 (18) ◽  
pp. 1949-1958 ◽  
Author(s):  
Wei Jiang ◽  
Liangfeng Sun ◽  
Ayou Hao ◽  
Jonathan Yan Chen
Keyword(s):  
Ionic Liquid ◽  
Thermal Properties ◽  
Cellulose Fibers ◽  
Degree Of Crystallinity ◽  
Coagulation Bath ◽  
Regenerated Cellulose ◽  
Wood Fibers ◽  
Liquid Residue ◽  
Regenerated Fibers ◽  
The Degree Of Crystallinity

Regenerated cellulose fibers from bagasse and wood were produced under various processing conditions using the ionic liquid 1-butyl-3-methylimidazolium chloride (BMIMCl) as a solvent. Two different ionic liquid solutions were prepared with 6 wt% of bagasse cellulose and 6 wt% of wood cellulose. The solutions were extruded with a dry-jet and wet-spinning method using water as a coagulation bath. A thermogravimetric analyzer (TGA) was used to measure the thermal properties of these regenerated fibers. Dynamic mechanical analysis (DMA) was used to determine the thermal mechanical property of the regenerated cellulose fibers and wide-angle X-ray diffraction (WAXD) was used to measure the degree of crystallinity, as well as the degree of crystal orientation for those experimental fibers. To evaluate the quantity of ionic liquid residue in the regenerated fibers, the instrumental methods of FT-IR and mass spectrometry were applied to test the residues of BMIMCl in the regenerated fibers. Research results indicated increases in the degree of crystallinity and storage modulus under a higher fiber drawing speed. Both regenerated bagasse film and regenerated wood film had similar thermal properties. However, the regenerated bagasse fibers showed a higher degree of crystallinity, and higher tenacity than the regenerated wood fibers obtained under the same condition. The study also revealed that water treatment would be helpful for eliminating the ionic liquid residue in the regenerated fibers.

scholarly journals Superbase-based protic ionic liquids for cellulose filament spinning

Cellulose ◽  
2020 ◽  
Author(s):  
Sherif Elsayed ◽  
Michael Hummel ◽  
Daisuke Sawada ◽  
Chamseddine Guizani ◽  
Marja Rissanen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ionic Liquids ◽  
Mechanical Performance ◽  
Cellulose Fibers ◽  
Fiber Spinning ◽  
Regenerated Cellulose ◽  
Market Demand ◽  
Protic Ionic Liquids ◽  
Rheological Characterization ◽  
Spinning Process

Abstract Lyocell fibers have received increased attention during the recent years. This is due to their high potential to satisfy the rising market demand for cellulose-based textiles in a sustainable way. Typically, this technology adopts a dry-jet wet spinning process, which offers regenerated cellulose fibers of excellent mechanical properties. Compared to the widely exploited viscose process, the lyocell technology fosters an eco-friendly process employing green direct solvents that can be fully recovered with low environmental impact. N-methylmorpholine N-oxide (NMMO) is a widely known direct solvent that has proven its success in commercializing the lyocell process. Its regenerated cellulose fibers exhibit higher tenacities and chain orientation compared to viscose fibers. Recently, protic superbase-based ionic liquids (ILs) have also been found to be suitable solvents for lyocell-type fiber spinning. Similar to NMMO, fibers of high mechanical properties can be spun from the cellulose-IL solutions at lower spinning temperatures. In this article, we study the different aspects of producing regenerated cellulose fibers using NMMO and relevant superbase-based ILs. The selected ILs are 1,5-diazabicyclo[4.3.0]non-5-ene-1-ium acetate ([DBNH]OAc), 7-methyl-1,5,7-triazabicyclo[4.4.0] dec-5-enium acetate ([mTBDH]OAc) and 1,8-diazabicyclo[5.4.0]undec-7-enium acetate ([DBUH]OAc). All ILs were used to dissolve a 13 wt% (PHK) cellulose pulp. The study covers the fiber spinning process, including the rheological characterization of the various cellulose solutions. Moreover, we discuss the properties of the produced fibers such as mechanical performance, macromolecular properties and morphology. Graphic abstract

scholarly journals Comparison of Regenerated Cellulose Fibers Spun from Ionic Liquid Solutions with Lyocell Fiber

2020 ◽  
Vol 76 (8) ◽  
pp. 257-266
Author(s):  
Jiaping Zhang ◽  
Keita Tominaga ◽  
Naoki Yamagishi ◽  
Yasuo Gotoh
Keyword(s):  
Ionic Liquid ◽  
Cellulose Fibers ◽  
Regenerated Cellulose ◽  
Liquid Solutions ◽  
Lyocell Fiber

Process-Induced Microstructure in Viscose and Lyocell Regenerated Cellulose Fibers Revealed by SAXS and SEM of Acid-Etched Samples

2021 ◽  
Author(s):  
Aakash Sharma ◽  
Parnashri Wankhede ◽  
Roopali Samant ◽  
Shailesh Nagarkar ◽  
Shirish Thakre ◽  
...  
Keyword(s):  
Cellulose Fibers ◽  
Regenerated Cellulose
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